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Radian Weapons R0928 Vertex-FBX Trigger (also known as the Radian Vertex FBX Flat Bow Single-Stage Trigger in Black).
This is Radian Weapons' premium drop-in single-stage AR-15 trigger featuring a flat bow (FBX) design. Developed in collaboration with TriggerTech, it incorporates advanced features like Zero Creep Technology and a roller sear for an exceptionally crisp, consistent pull. The forward-positioned flat trigger bow enhances ergonomics by promoting a straight-back pull, reducing the tendency for "left/right and down" torque during rapid or precision shooting.
Key Features & Specs
- Trigger Type: Single-stage drop-in cassette (easy install in ~5 minutes with standard pins).
- Pull Weight: Crisp 3.5–4 lb break (consistent across units; real-world measurements often land around 3.5–3.75 lb).
- Break & Reset: True zero-creep break with extremely short overtravel and a short, tactile reset — ideal for fast follow-up shots or precision work.
- Bow Style: Flat bow (FBX) constructed from 1144 carbon steel; positioned forward of traditional triggers for better finger placement and straight-pull ergonomics.
- Internal Components: Hardened 440C stainless steel internals with Frictionless Release Technology (roller sear). Flat-wire (FLTWR) spring for reliable performance.
- Anti-Walkout: Built-in design prevents pin walkout even with standard mil-spec 0.154" hammer/trigger pins (no KNS anti-walk pins required).
- Compatibility: Direct drop-in for standard AR-15 platforms (mil-spec lower receivers). Compatible with most aftermarket lowers.
- Finish: Black (matte or anodized for durability).
- Additional: Made in the USA. Designed for competition, long-range, tactical, or general AR-15 use. The flat bow provides a modern, comfortable feel preferred by many competitive and tactical shooters.
The Vertex-FBX is praised for its clean, predictable break with virtually no creep, short reset, and ergonomic flat face that aids consistent finger placement. It performs well in both rapid fire and precision applications, with reviewers noting it feels "above average" or "crisp and addictive" compared to stock or basic aftermarket triggers.
Who It's For
- AR-15 builders or owners wanting a high-performance single-stage trigger with a flat bow for improved control.
- Competition shooters (3-Gun, PRS, etc.) or tactical users who prefer a flat trigger face over curved.
- Anyone upgrading from mil-spec triggers for a crisper, shorter-reset pull without going to a two-stage.
